Question

CPU and memory usage with PHP parsing

Asked by: dischob

I'm making a standard site. So different people will use the same code which is bundled as functions in 1 PHP file.
In the file are now around 100-120 functions. Each page loads this file which makes the loading extremely slow, sometimes up to 10s.
Anyone any idea how to speed up the loading and not loosing the "standard" functionality?

This Question has been solved and asker verified All Experts Exchange premium technology solutions are available to subscription members.

Subscribe now for full access to Experts Exchange and get

Instant Access to this Solution

  • Plus...
  • 30 Day FREE access, no risk, no obligation
  • Collaborate with the world's top tech experts
  • Unlimited access to our exclusive solution database
  • Never be left without tech help again

Subscribe Now

Asked On
2009-05-26 at 09:06:15ID24438576
Tags

PHP

Topic

PHP Scripting Language

Participating Experts
2
Points
500
Comments
7

Trusted by hundreds of thousands everyday for fast, accurate and reliable tech support.

  • "The time we save is the biggest benefit of Experts Exchange to Warner Bros. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange." Mike Kapnisakis, Warner Bros.
  • "Our team likes having a resource that is more secure than just using Google and most experts using this service really know their stuff. It's nice to look here first versus using Google." Dayna Sellner, Lockheed Martin
  • "Anytime that I've been stumped with a problem, 9 out of 10 times Experts Exchange has either the accepted solution or an open discussion of the potential solution to the problem." Kenny Red, eBay Inc.

See what Experts Exchange can do for you.

Got a question?

We've got the answer.

Experts Exchange has been collecting answers to technology questions since 1996…3 million and counting! If you have a question, chances are we already have your answer.

Screenshot of Experts Exchange Knowledgebase

Need individual assistance?

Our experts are ready to help.

If you can't find the exact answer you're looking for, ask our exclusive community of 50,000 experts. You’ll get a personalized answer from a trusted professional.

Screenshot of Experts Exchange Knowledgebase

Want to learn from the best?

Read articles from industry experts.

Thousands of free tech tips, tricks, how-to’s and tutorials are available in our peer reviewed articles section. See for yourself how smart our experts are, no login required.

Screenshot of an Article

Working on a long term project?

Store your work and research.

Save solutions to your questions, answers you’ve discovered through searching plus helpful articles in your personal knowledgebase for easy future access.

Screenshot of Experts Exchange Knowledgebase

Access the answers to your technology questions today.

Subscribe Now

30-day free trial. Register in 60 seconds.

What Makes Experts Exchange Unique?

Members of the expert community talk about why the experience at Experts Exchange is different than what you will find anywhere else.

Trusted by the world's most respected brands.

image of each brand's logo

Faithfully serving IT professionals since 1996.

Experts Exchange Logo

Try it out and discover for yourself.

Subscribe Now

30-day free trial. Register in 60 seconds.

Related Solutions

  1. extremely slow browsing on dsl connection;packet loos a…
    there was nothing wrong with the dsl connection that i have but my browsing is extremely slow....i called tech support of my isp and she had me do a ping and traceroute. most websites have either packet loss or time outs.traceroutes also timed out.i expect more from a dsl con...
  2. IIS6 extremely slow over network
    Background: I have been waiting a long time for my new web server to arrive at my work and now it's here. The old one was just a plain desktop computer with PIII @ 550MHz and IDE disks and the new one has a dual Xeon @ 2.4GHz, 2GB RAM, SCSI Ultra 320 hdd with raid etc. etc. Q...
  3. PHP form submitting email extremely slow
    I have a PHP form on my website that does this: <form method="post" action="sendmail.php"> Email: <input name="email" type="text" /><br /> Message:<br /> <textarea name="message" rows="15...
  4. T3/DS3 BUNDLED  POINT TO POINT
    We are in the process of creating a DR plan and part of the plan is to use a corporate approved Colo in a different state. We are planning on moving our data center to the Colo but we are a bit concerned on the bandwidth\response times we will get when most of our core apps a...

Free Tech Articles

  1. WARNING: 5 Reasons why you should NEVER fix a computer for free.
    It is in our nature to love the puzzle. We are obsessed. The lot of us. We love puzzles. We love the challenge. We thrive on finding the answer. We hate disarray. It bothers us deep in our soul. W...
  2. SCCM OSD Basic troubleshooting
    SCCM 2007 OSD is a fantastic way to deploy operating systems, however, like most things SCCM issues can sometimes be difficult to resolve due to the sheer volume of logs to sift through and the dispe...
  3. Migrate Small Business Server 2003 to Exchange 2010 and Windows 2008 R2
    This guide is intended to provide step by step instructions on how to migrate from Small Business Server 2003 to Windows 2008 R2 with Exchange 2010. For this migration to work you will need the fo...
  4. Create a Win7 Gadget
    This article shows you how to create a simple "Gadget" -- a sort of mini-application supported by Windows 7 and Vista. Gadgets can be dropped anywhere on the desktop to provide instant information, ...
  5. Outlook continually prompting for username and password
    There have been a lot of questions recently regarding Outlook prompting for a username and password whilst using Exchange 2007. There are a few reasons why this would happen and I will try to cover t...
  6. Backup Exchange 2010 Information Store using Windows Backup
    There seems to be quite a lot of confusion around the ability to backup Exchange 2010 using the built in Windows Backup feature. This stems from the omission of this feature prior to Exchange 2007 s...

Cloud Class Webinars

  1. Avoiding Bugs in Microsoft Access
    Alison Balter takes and in-depth look at avoiding bugs in Access. In this webinar you will learn about using the immediate window to debug your applications, invoking the debugger, using breakpoints to troubleshoot, stepping through code, setting the next statement to execute, ...
  2. Top 10 Best New Features in Visio 2010
    Scott Helmers gives live demonstrations of the top 10 new features in Visio 2010. This webinar will teach you how to create compelling diagrams by adding shapes to the page with a single click, linking the shapes in a diagram to data in Excel (or SQL Server, or SharePoint), ...
  3. IT Consultant Business Secrets Revealed
    Michael Munger, Experts Exchange tech pro and IT consultant, pulls back the curtain on his very successful businesses and answers question on every IT consultant and business owner should know about. He shares secrets on what he did to solve the 5 most common problems in IT, ...
  4. Disaster Recovery and Business Continuity
    Quest CTO, Mike Billon, gives an overview of the steps involved in building a dunamic disaster recovery plan. Through case studies and an examination of software/hardware tooles for monitoring and testing, you'll gain a better understandin of where you are, where you want ...
  5. Organize Your Visio Diagrams with Containers and Lists
    Scott Helmers uses cross functional flowcharts, wireframe diagrams, data graphic legends and seating charts to teach you: how to ustilize all three new structured diagram components in Visio 2010, the best practices for organizeing shapes in previous version of Visio, how to organize ...
  6. How to Us Objects, Properties, Events and Methods in Microsoft Access
    Alison Dalter gives an in-depbth look at objects, properties, events and methods in Microsoft Access. In this webinar you will learn about using the object browser, referring to objects, working with properties and methods, working with object variables, understanding the ...

Join the Community

Give a Little. Get a Lot.

Join the community of experts here and help other tech pros by answering question in your area of expertise. You can earn FREE access to all Experts Exchange's premium features and resources.

Join the Community

Answers

 

by: jessegivyPosted on 2009-05-26 at 10:06:49ID: 24475206

As much as I hate to say this loading the file really shouldn't be an issue.  I'd like to suggest first of all that you look into object oriented programming as an overall solution to your procedural woes.

What I can recommend as far as optimization of the existing code is to simply do some performance testing, hopefully by unit testing your massive include file, but perhaps simply identifying where the lag is occurring by commenting out functionality could work.  Have you come to the conclusion that the lag is simply incurred by including the large file by trying to just load the page without including it?  

Regards,

Jesse

 

by: cmaohioPosted on 2009-05-26 at 11:06:07ID: 24475813

jesse is right. I can only add that I had a shopping cart that loaded thousands of lines of code, one file which had over 7,000 lines in it and the site didn't take any time to load.

What I have done with loading issues is sometimes done an echo spot check, so to speak.

I would create a timestamp like:
$start = date("U");

then every few lines after some major code has been executed or something I would add:

Echo "time to load:" . (date("U") - $start);

this would output to the browser and you can search for the strings to see where the delay is happening.

 

by: dischobPosted on 2009-05-29 at 02:04:32ID: 24501165

@Jesse
So you actually want to say that an include of these functions (10380 lines and 300kB in size) shouldn't slow done the server? I did the test already cmaohio suggested, and we see it takes almost 2 seconds, just to load that 1 file! and while loading it the CPU usage goes very high.
So when this shouldn't happen, the only solution is that is is 1 or more functions in the file causing the slow down?

You propose looking at OO programming. Does it make a difference if you load 100 functions in a file or in a class?

 

by: cmaohioPosted on 2009-05-29 at 05:47:52ID: 24502303

300kb in size, that is really large. And you're using a simple include() function?

There are accellerators out there. Zend.com makes one, there is also http://www.php-accelerator.co.uk/

However, you have to have control of your server, as far as I know, to get these to be put in. If you are virtual hosted, the companies won't probably help you.

I used the latter one for many years on my server and was very happy with it.

 

by: jessegivyPosted on 2009-05-29 at 13:44:02ID: 24506071

Yes sir that's exactly what I suggest.  The use of object orientation would help because you could modularize your include file and only include the functions needed for each individual script instead of just including everything under the sun.  I assume the scripts don't use ALL the functions in the included file?

My guess is that there are a handful of functions in the include file that are time intensive and perhaps they need to be.  Perhaps they don't.  Furthermore, I'll wager you've got a few functions that are doozies, large functions that are crushing the processor?  If you want to continue with just having one massive include file, you'll need to identify those functions that are using the most resources and then work on reducing the time it takes to compile and execute those functions.  If I'm correct and you'd like to post some code I'd be happy to see if we can't get them optimized.

I'm sorry if my words are harsh, I really mean no offense.  I'm sure you'd laugh if you saw some of my code, happens to the best of us.  Generally though, once you hit ten thousand lines (or really even one thousand for that matter), it's time to start thinking about breaking the sucker up.  Of course I'm willing to admit it if I'm wrong and you're doing some kind of crazy graphics rendering or similar mathematical operation that really requires intense computation.

Best Regards,

Jesse

 

by: dischobPosted on 2009-06-02 at 02:26:07ID: 24524893

@Jesse
I was not sure whether to cross over to classes or not. The only thing that kept me back is the fact that several "standard" sites are online already.
So you did actually confirm that we'd better look into classes.

 

by: dischobPosted on 2009-06-02 at 02:28:39ID: 31587739

Sorry, it was difficult to divide the points. Actually I got no new answers. I had been thinking in that direction already. But thanks for the confirmation. It helped to make up my mind. :)

20120131-EE-VQP-002

3 Ways to Join

30-Day Free Trial

The Experts

98% positive feedback on 31,087 answers since March 2000. angeliii is a Microsoft Most Valuable Professional for his work with MS SQL Server & Develoment.

He has also proven his knowledge of Visual Basic Programming, PHP Scripting and Oracle Databases.

The Experts

97% positive feedback on 10,752 answers since July 2000. lrmoore has more than 18 years experience in the networking industry.

The six-time Mircosoft MVPs specialties include firewalls, virtual private networking, and network management.

Testimonials

"...and excellent source for support... Kind of like having your very own IT dept." Electriciansnet

Testimonials

"I was apprehensive at signing up at first. However... it has already made my life as an IT administrator much easier." JaCrews

Testimonials

"WOW! You guys have great, active, and knowledgeable people on here." moore50

Business Clients

Business Clients

In the Press

"If you’ve got a question... Experts Exchange can supply an answer.”

In the Press

"...an invaluable aid for both IT professionals and those who require tech support."

In the Press

"where IT professionals provide quick answers on just about any topic"

Business Account Plans

Loading Advertisement...